12 December 2008, 11:58 AM ET
Each kind of telescope gathers light in a different way. Here's what you need to know to choose one over another.
12 December 2008, 10:48 AM ET
There's an amazing range of color in the stars - from subtle to striking. Here's how to best see distant suns.
12 December 2008, 08:08 AM ET
Go inside the optical tube, with its lenses and mirrors, to see how telescopes harvest tried old photons to bring you the news of the Universe.
02 December 2008, 08:47 PM ET
U.S. President-elect Barack Obama's NASA transition team is asking U.S. space agency officials to quantify how much money could be saved by canceling the Ares 1 rocket and scaling back the Orion Crew Exploration Vehicle next year.
21 November 2008, 09:07 AM ET
NASA and its contracting team conducted the first full-scale ground test of the U.S. space agency’s Moon-bound Constellation program.
04 November 2008, 03:37 PM ET
NASA's plan to retire its shuttle fleet by 2010 faces big challengs, a new report finds.
29 October 2008, 05:25 PM ET
NASA shot back Wednesday at reports suggesting the Ares 1 rocket is doomed to failure.
29 October 2008, 07:56 AM ET
NASA's moon truck prototype is proving to be the ultimate lunar RV.
24 October 2008, 12:16 AM ET
Many have been fooled into thinking that it's beginning of morning twilight.
07 October 2008, 07:00 AM ET
NASA's Apollo moon treks evolved from Mercury and Gemini during the Space Race.
02 October 2008, 07:00 AM ET
After five decades, NASA hopes to move from the shuttle to the moon.
01 October 2008, 07:00 AM ET
Space commentator Jim Banke looks at what NASA's next 50 years may bring.
29 September 2008, 07:00 AM ET
U.S. astronauts returning to the moon will follow a path echoing Apollo.
23 September 2008, 07:00 AM ET
NASA is facing big challenges to replace the shuttle and keep astronauts aloft.
16 September 2008, 07:00 AM ET
NASA's astronaut corps faces serious challenges as the agency turns 50.
12 September 2008, 12:11 PM ET
A U.S. Senator is pushing to extend NASA seats on Russian spacecraft.
10 September 2008, 09:16 PM ET
NASA's Ares I moon rocket passed a key review late Wednesday.
10 September 2008, 05:27 PM ET
The firm SpaceX hopes to close the coming gap in U.S. space launch ability.
10 September 2008, 06:51 AM ET
The number of private groups working on suborbital vehicles is growing.
26 August 2008, 07:17 PM ET
Senators urge president to preserve option to fly shuttle past 2010.
21 August 2008, 06:25 PM ET
Proper funding and testing plan are needed for NASA's tech development program.
21 August 2008, 05:32 PM ET
A parachute test for NASA's Orion space shuttle successor went awry.
19 August 2008, 05:36 PM ET
NASA has a shock absorber solution to its new rocket's vibration problem.
13 August 2008, 05:22 PM ET
U.S. Sen. Bill Nelson said he fears Russia's action against Georgia may have consequences for NASA.
11 August 2008, 06:27 PM ET
NASA's space shuttle replacement will not fly earlier than 2014.
31 July 2008, 12:52 PM ET
Former astronaut John Glenn criticized the president for underfunding NASA's moon plan.
30 July 2008, 09:56 AM ET
NASA's LRO moon probe launch has been delayed in favor of a military mission.
30 July 2008, 06:24 AM ET
Astronauts may get a new personal navigation system on the moon.
08 July 2008, 03:48 PM ET
NASA has set the target launch dates for the last shuttle missions.
08 July 2008, 03:48 PM ET
The final schedule is set for NASA's last shuttle missions.
18 June 2008, 01:19 PM ET
Two stars thought to be identical twins were born a half million years apart.
13 June 2008, 03:30 AM ET
NASA spacesuits get new maker and look for lunar missions.
03 June 2008, 01:01 PM ET
New images reveal the Milky Way has two major arms and other minor arms.
30 May 2008, 06:49 AM ET
The most important sky map line is the ecliptic, the sun's apparent path.
15 May 2008, 05:59 PM ET
NASA is expecting delays for the first tests of its shuttle successor.
11 April 2008, 07:00 AM ET
Soaring high in the eastern sky are the Hunting Dogs, Canes Venatici.